1) = 4.123
25*2=50
33*1=33
50-33=17
17 2*8+1 1
17+8= – = ——— = 2— =2.125
8 8 8
2) 18.0625
17*4=68
68. 17*4. 17. 8*2+1. 1
68÷8= — = —— = — = ———= 8—= 8.5
8. 2*4. 2. 2. 2
1)6 1/4-4 1/8=25/4-33/8=(25*2-33*1)/8=50-33/8=17/8=2 1/8=2.125
2)17/8*4=17/8*32/8=17*32/8*8==17*4/8*1=68/8=8 4/8=8 1/2=8.5
Объяснение:
